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image: Suspected Effects of Vitamin D

Suspected Effects of Vitamin D

By | March 1, 2012

Vitamin D has a variety of actions in the body. It binds to the vitamin D receptor (VDR), which then binds to the retinoid X receptor (RXR) and activates the expression of numerous genes. 


image: Calcium and the Pancreas

Calcium and the Pancreas

By | February 1, 2012

Normal pancreatic function depends on the precise flow of calcium within and into the acinar cells of the organ. 


image: Nari's Shark Bite

Nari's Shark Bite

By | December 1, 2011

In February 2009, a bottlenose dolphin named Nari swam up to the Tangalooma Wild Dolphin Resort on Moreton Island off Australia’s Queensland. 


image: One-Eyed Shark

One-Eyed Shark

By | October 19, 2011

This is not an ancient one-eyed species, but an animal suffering from a rare congenital condition known as cyclopia, which has been documented in a variety of species, including humans. 


Saving Rwanda's Gorillas

By | October 1, 2011

In late June 2009, a small group of mountain gorillas in Rwanda’s Volcanoes National Park began to fall ill. One by one, 11 of the dozen apes started exhibiting severe respiratory problems. 


image: Swallowing the Surgeon

Swallowing the Surgeon

By | October 1, 2011

In fewer than 15 years, nanomedicine has gone from fantasy to reality.


image: Early Bird Plumage

Early Bird Plumage

By | September 15, 2011

After rummaging through thousands of amber inclusions housed at the University of Alberta and the Royal Tyrrell Museum of Paleontology in Canada, researchers discovered 11 amber encased-feather fossils that provide the most detailed picture yet of early feather evolution.


image: The Seat of Memory

The Seat of Memory

By | September 1, 2011

Early on, researchers had learned that the hippocampus was the structure in the brain where long-term memories were created and stored, but it was not known whether the different cell types within this structure might be more or less susceptible to the aging process.


image: The Cytokine Cycle

The Cytokine Cycle

By | September 1, 2011

The initiating cause of Alzheimer’s disease is still unknown. However, from our studies it’s clear that many types of neuronal damage—­­from traumatic brain injury, to epilepsy, infection, or genetic predisposition—­can activate brain immune cells—microglia and astrocytes-- promoting them to produce IL-1 and S100 inflammatory cytokines.


image: Battling Malaria in Africa

Battling Malaria in Africa

By | August 1, 2011

When general practitioner John Lusingu returned to his native Tanzania to do research on malaria, he was met with a total lack of science infrastructure. 


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